Description
Detects trunk open/close condition.
Component Function Check
1. CHECK FUNCTION
With CONSULT
Check TRNK/HAT MNTR in Data Monitor mode with CONSULT.

Diagnosis Procedure
1. CHECK TRUNK LAMP SWITCH INPUT SIGNAL


2. CHECK TRUNK LAMP SWITCH CIRCUIT



3. CHECK TRUNK LAMP SWITCH GROUND CIRCUIT
Check continuity between trunk lid lock assembly connector and ground.

4. CHECK BCM OUTPUT SIGNAL


5. CHECK TRUNK ROOM LAMP SWITCH
6. CHECK INTERMITTENT INCIDENT
Component Inspection
1. CHECK TRUNK LAMP SWITCH

Trunk lid opener cancel switch
Door request switchB2603 shift position status
Description
BCM confirms the shift position with the following 2
signals.
CVT selector lever
P/N position switch
DTC Logic
DTC DETECTION LOGIC
NOTE:
If DTC B2603 is displayed with DTC
U1000, first perform the trouble diagnosis for DTC U1000. Refer to
...
Main line between A-bag and ABS circuit
Diagnosis Procedure
1.CHECK CONNECTOR
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Check the following terminals and connectors for damage, bend and
loose connection (connector side
and harness side).
Harness connector M1
Harness connect ...
B261A push-button ignition switch
Description
IPDM E/R transmits the push-button ignition switch status via CAN
communication to BCM. BCM receives
push-button ignition switch status by hardwire input. BCM compares the 2 signals
for mismatch.
DTC Logic
DTC DETECTION LOGIC
NOTE:
If DTC B261A is displayed with DTC U1000, ...